Swiss 18K gold repeating cylinder pocket watch Circa 1830

Gold quarter repeater by Antoine Boursier
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A fine Swiss 18 carat gold open faced quarter repeating key wound pocket watch, circa 1830. The gilt brass movement with a cylinder escapement, repeating the quarter hours on two steel gongs activated by a pull-and-twist piston in the pendant. The case with a reeded band and an engine turned back. White enamel dial with Roman hour numerals, an outer minute track and original moon hands. Cuvette signed, case and movement numbered.
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Diameter: 39.5 mm
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Signed: Boursier élevé de Lepaute à Paris
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This watch is a typical Genevan production retailed by the Parisian watchmaker Antoine Boursier, who was active in Paris in the mid 19th century.